Improvement in boileimpeeders



uiten gisten @attent vp @ffice JOHN w. DoUeHTY AND `n. F. oL-MSTED, l0F NEWBURGH," NEW YORK. Letters Patent No..62,258,dated february `19, 1867.' l .l l l l l mssovsneur lusonnnfrssnessf.

To .ALL WnoM. ITMAY concesse Be it lcnownlthnt we, Jenn W. .Donen'rr and B. F. OLMsTsn, ofNewbui-gh'inthe county of Orange, andin the State of Neiv York, have invented nnownnd usefnl Improvement in Siphon Feed-Water Regulators for Steam Boilers; and we do herebydeclarc that the following is afull, clear, and exact description cf the construction and 'operation *of thesame, reference being had tothe annexed drawing, mnkingapart of this specification-,in which-#.- p i t. Y v

Figure l is s vertical longitudinal section, of the whole apparatus. l. Figure 2`is a. front view of the saine.

Figure 3 represents n. cross-section andbottom view in line C D. Figure i4 is n cross-section und .top view inline A B. p p iB B, in: figs. 1 and 2, represent the shell of a. steam boiler. Tw'o nozzles, H1 and H,'are riveted to the top of the boiler for the reception of the stop-cocks Gnnd G `on top of them, 4and for tubes belotr on a hub projecting inside the, boiler. One of these tubes, SQis along one, and pitojects dov'vn in 'the waterto within near thebottom of the` boiler; the other tube, S, is a. short one, and is connected with another tubc,".l, by a jeinbpiece, R, which is so constructiedns tonlloiv the lowerend of the tube' `'.l to be lowered or raised bymeans of a, rod, u, which is nccessibl front' t-lie'outsidcrof the boiler, and 'tvhicli is made stationary in any position by n stsnderd,w" 1v?, festenedto the-boiler, n s shown n'igs. 1 and 2, or which motion can be brought by `xnenns of levers. or ropes to't'h'effixfclnensl room in the front of the boiler, to ineke it handier yet, if' required. On Atop` of .stopcock-G is festenedfa. casting, VE, which may be consideredus n prolongation of the tnbeSbut )vhicl1 is widened to such nnextent as -tonllown hollow oylindricalllont, F F; 'of considerable c pacity, to move easilyafew inches up and down. This widened part, E2, has on the 'inside some ribs, o" r2- r r, running vertically to guide the iioat in the centre and to allow suiiieientspccc between the iloatand the side of the chamber forl freepassnge of water, at least the-.seule area as the area ofvtubevSll `lThe ppper part o f El of chnu'iber E is vrnuelnrger yet to give sufficient room forl somo levers and' connections belonging `tothe apparatus;` furthe seme reason is put on the extensionniozzle E5. 4 The float F F is chst hollowand llled with air, the core-holes i on top end bottom being stopped .up stir-tightv by brass plugs. Ribs are cast inside to strengthen it against steam pressure from outside.. In the centre of the cover E is a`small valve, v, fitted wellsto its lsent in a brass case, V, to which is attached at small air-chmbei, i, and the discharge pipe f f of the feed-pump which is to supply the boiler with water: The valve o is to be 4opened from the inside of the chamber E, and is kept to its "seat by tire pressure ofthefeed-wuter on top of the vulve. V'.ll1-e top of. the float F is connected by two links ll l to a 1lever lf P, thefulcrum of n -hiehli inthefccntre as, supported by n brleket; `b'.' 0n the same armyvith the Host :mother pair of links, l* 1*,jlare fastened to lever l1 P in a, and-connect this levcxfwith'another one,"`l5'iunya",

the one end of which, P, is the `point to lift the valve'v from its sent and to let the valve come down again toits seat. This operation will be doie s soon as the ilont F is descending inV the chamber E, or rising. The arrangetuent in the levers is mede sojtlrnt the oat"F,deseending three inches, vrillcraise the valve v one-half inch from its seat. A large solidlball, W, is pnt on the other arm of the lever .E t9 counterbalnnce and -regulate the float F F. It een be shifted toldi'ereit positions on the lever, and fastened by ineens Misset-screw. accessible bythe coser E6 being teken o5' from the opening of the pipe At the bottom of this pipe E-the second tube .Sifrom the boilerenters' the clumberpE, bringing the chamber -in dhnblecpl'mectfnivith the .boilergestabsm li'sliigin this wnyla'siphon, the one, leg of w'hiobisthe tube Slynnd A: .fexn'esentsthe long siphon leg, the other le oftthiehs the tube S", 555'@ re resentin the sherbs li le 8 P 4P 8 The operation of 'this apparatus ieee folloivs Lower the movable leg Tinside the boiler tojthe position est `shown in dotted lines?, iig.i 2, that the end may come down to Lr pilovidd theivnteiin the boiler is standing nt L L'` The existing steam pressure in the boiler will soonjlll thel'whole apparatus with wnter through the tubes Snnd T. The ilocit'F F, m'ade und regulnted tohave Snfiiieent buoyancy, vvillriseto its highest position,

as shown in fig. 1 'lhe levers', also, -jill bein the same position, ns shown in fig-l; then'alv'et' will shntyno Water 4can entei' the boiler through the velvc 1.', but the'feedpuup,{vyhcli hfis to supply the boiler vrithwater,

is workinglcontinunlly, und the feedfn'ntenis-cnrriedfo' by cside p'ipe, jf', orlis forced thronght-sniety-velve,

which isplneed between the 4i'eed-pntnp end the checlvalve, and brought bool; tothe suction. pipe or'to the tanln By using steam from the boiler for running-au engine, or for any other purpose, the water willige down -.-in the boiler until the level of the water reaches the point L' `or the end of thetube T. At this moment steam enters the tube T and will ll the apparatus. Theivater, by its own weight, falls back through chamber :E2 E3 and tube Sl to the level ofthe water in the boiler. The float F at'thesame'time is descending in the chambei-E2'with the-water, pushing, by this operation, the valve 'u op'en .'by its/eonnetions with the valve, through wlii'eh now,

the feed-water will beA forced by the pressure 'from the pump into the chamber El and pass aroundthe float through tube S into the boiler, until the level o f the water rises high enough to bring the emiA of the tube T.

under water again andfill the apparatus with water, v'vhen the float F willrise and close the valve v'. When the tube T remains stationary at a certain point the apparatus will be filled by steam or. by water successively at short intervals as often assteam or water enters the tubo T, the float F admitting water through the valve v as long as steam enters the tube T at the waternline. l y h VIt will be seen that in this way the level of the ivater in the boiler can'vary but very little, or it is kept at the same lheight by this self-regulating siphon feed-water apparatus.- The water line in the-'boiler can be raised or lowered-by onl;r alteringth'e position of I the movable tube T. K'

What we "claim, and desire to secure by Letters Patent, is

1. The combination and arrangement of the oat F with the leg-of the siphon S1 links l Z1, lever Z213, weight W, vlinks Z* l, lever Z5 and valve v with the chamber E and tube S2, substantially upon the prineiple and in the manner as herein set forth. I

i2.' The arrangement of the short siphon leg Twhereby tolo'wer or raise it, substantially in the 4manner asA herein set forth. v y h up v JOHN W. Do-UGHTY, Witnesses: l B'. F. OLMSTED.

JNO'. C. Non, y

JOHN B. Kami.' 

